WT-QSFP28-CWDM4

model：

100Gbs QSFP28 CWDM4 Optical Transceiver Module

Description Technical parameters Applications Download Related Products

FEATURE

l Four-channel full-duplex transceiver modules

l Transmission data rate up to 26Gbit/s per channel

l Up to 2km transmission of single mode fiber

l Low power consumption <3.5W

l Operating case temperature 0°C to +70°C

l 3.3V power supply voltage

l RoHS 6 compliant

l Hot Pluggable QSFP form factor

l LC connector receptacle

l Built-in digital diagnostic function

APPLICATIONS

l 100G Ethernet

l Proprietary High Speed Interconnections

l Data center

Outline drawing

Label： QSFP28

Optical Characteristics

All parameters are specified under the recommended operating conditions with PRBS31 data pattern unless otherwise specified.

Transmitter
Parameter	Symbol	Min	Typical	Max	Unit	Notes
Wavelength Assignment	L0	1264.5	1271	1277.5	nm
	L1	1284.5	1291	1297.5	nm
	L2	1304.5	1311	1317.5	nm
	L3	1324.5	1331	1337.5	nm
RMS Spectral Width	λrms	-		3.5	nm	1
Average Launch Power, each lane	PAVG	-4	-0.5	+2.5	dBm
Optical Modulation Amplitude (OMA)	POMA	-4	-0.5	+2.5	dBm	1
Difference in Launch Power between any two lanes	Ptx,diff			4.0	dB
Transmitter and Dispersion Penalty per Lane	TDP			3	dBm
Rise/Fall Time	Tr/Tf			30	ps
Extinction Ratio	ER	3.5			dB
TransmitterReflectance	RT			-12	dB
Transmitter Eye Mask Margin	EMM	10			%	2
Average Launch Power OFF Transmitter, each Lane	Poff			-30	dBm
Transmitter Eye Mask Definition {X1, X2, X3, Y1, Y2, Y3}		{0.31, 0.4, 0.45, 0.34, 0.38, 0.4}

Parameter	Symbol	Min	Typical	Max	Unit	Notes
Receiver
Wavelength Assignment	L0	1264.5	1271	1277.5	nm
	L1	1284.5	1291	1297.5	nm
	L2	1304.5	1311	1317.5	nm
	L3	1324.5	1331	1337.5	nm
Damage Threshold	THd	+3			dBm
Overload, each lane	OVL	+2.5			dBm
Receiver Sensitivity in OMA, each Lane	SEN			-10	dBm	3
Signal Loss Assert Threshold	LOSA	-30			dBm
Signal Loss Deassert Threshold	LOSD			-12	dBm
LOS Hysteresis	LOSH	0.5	1.5	6	dB
Optical Return Loss	ORL			-12	dBm

Notes:

1. Transmitter wavelength, RMS spectral width and power need to meet the OMA minus TDP specs to guarantee link performance.

2. The eye diagram is tested with 1000 waveform.

Sensitivity is specified at 5x10-5 BER.

For detail, please check the datasheet in "Download".